Finding the Fourth Proportional to 845,022,416.80, 1,266,021,970.80 and 724,090,064.80
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Solution
The fourth proportional to 845,022,416.80, 1,266,021,970.80 and 724,090,064.80 is: 1,084,839,777.80
Step by Step Solution
- Step 1: Write the proportion equation
845,022,416.80 : 1,266,021,970.80 = 724,090,064.80 : x - Step 2: Convert to fraction form
845,022,416.80/1,266,021,970.80 = 724,090,064.80/x - Step 3: Cross multiply
845,022,416.80x = 1,266,021,970.80 × 724,090,064.80 - Step 4: Simplify right side
845,022,416.80x = 916,713,930,874,795,648 - Step 5: Solve for x
x = 916,713,930,874,795,648/845,022,416.80 - Step 6: Final answer
x = 1,084,839,777.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.